3D Ultrasound : 11th Weeks of Pregnancy

The midgut herniation disappear and fetal kidneys produce urine that is excreted into the amniotic fluid.3D ultrasound finding: During the 11th weeks of pregnancy, development of the head and neck continous. Facial details such as nose, orbits, maxilla and mandibles are often visible. Herniated midgut returns into the abdominal cavity. Its persistence after 11th week of gestation is presumptive of an omphalocele. Planar mode enables detailed analysis of the embryonic body with visualization of the stomach and urinary baldder. Kidneys are often visible. Arms and legs continue with development. Hata and coworkers conducted a study an visualization of fetal limbs by 2D and 3D sonography. The ability to visualize fetal hands/finger and feet/toes was better with 3D than with 2D ultrasonography in the late first trimester (detection rate were 65 percent and 41 percent by 3D ultrasonography for hand and feet, respectively and 41 percent and 12 percent, by 2D ultrasonography). Long bones can be visualization as hyperechoic elongated structure inside upper and lower extremities. Detailed 3D analysis of the fetal spine, chest and limbs is obtainable by using the transparent, X-ray like mode. With the use of the transparency X-ray system, starting at 13 week the medular channel, each vertebra and ribs can be visualized and even the intervertebral disks can be measured. This vopens unexpected possibilities for early diagnosis of skeletal malformations.